Anchoring structure for portable ice boxes



Jan. 16, 1940. w. F. KIRK ANGHORING STRUCTURE FOR PORTABLE ICE BOXES Filed Dec. 17, 1937 2 Sheets-Sheet l I INVENTOR; W////d/77 fi A m/r ATTORNEYS w. F. KIRK Jan. 16, 1940.

ANCHORING STRUCTURE FOR PORTABLE ICE BOXES 2 Sheets-Shem 2 Filed Dec. 17, 1937 I INVENTOR. WWW/4m f? ///'/"/K ATTORNEYS Patented 1a. 16, 1940 v UNITED STATES f ancnomnc STRUCTURE Fox PORTABLE ICE BOXES' T owm Ka s s Gi a Applic umnmmber 1'1, unseen so, 180,360

s w rclaim. (o1. ars -361 s pp h s v t n, at s-w se ox of the port- Elie. 6 isan enlarged fra mentar v t ca seeeb er a spor able ype whi e used in ipping small quantities of perishables in freight cars that are not necessarily equipped to main- A yet further aim of this invention is the provision of anchoring means for portable, trans- ,pOr-table iceboxes that permits moving the block receiving element to an inoperative position so no that the wheels may freely function while the ice box is being moved through theiriise.

lThisinvention further provides a unique ice box andmeans for anchoring the same in place,

which includes speciallycformed legs at one end =3. of the ice box'and movably mounted elements at the otheriend of said box,.,whichmoyable elements arejin juxtaposition to. a series of wheels carried :bytheboxalong the said second mentioned end. w l l Another object of the invention is to provide a specially formed anchoring element for portable ice boxes which element has a block receiving cavityformed therein, and a specially located slot in communication with said cavity so that the block when in place,may be secured to the supporting surface at a point within the cavity as well as at points remote therefrom.

Other objects of'the invention will appear during the course of the following specification, referring to the accompanying drawings wherein: Figure 1 is a perspective view of a portable ice box illustrating the manner of incorporating the anchoring structure at one end thereof.

r Fig. 2 is a similar perspective view of the other 45 end of the ice box showing the anchoring structure in place. i I Fig. 3 is an enlarged fragmentary vertical sec tional view through the lower portion of the ice box.

Fig. 4 is a still further enlarged fragmentary detailed view illustrating the two positions assumed by one of the movable block receiving elements of the anchoring structure. 1

Fig. 5 is a fragmentary vertical" sectional view 55 taken along line v-v of Fig. 4 and, l

normal view taken. alone 111 19 Vie Q F sn In p a t ce ithas been found that no tab lee boxes of the natur provided fo t an po ting relatively small quan it es of Per shabl s, are hard 5 to anchor in place so th the ie t n o th frei ht car'will no islod e e e ox c use damage to thebQ t l ndto the frei h loaded in the car with th same: Ice boxes wherein perishables are shipped, and are A" movable to and from a pos tion fre ht can comprise an insulatedwbOXB having a cavity to therein for th recepti n of th m cha se t r be s ipped- Conven on l doo s I2. perm ac ress wheels are positioned adjacent to one. endofgbox 8. This-said one end is pr ferably the rear end thereof when it is considered that the doors J2 are in the front ender the box.

t In actual constructionbwheels l4, brackets l8 s and the associated structure is carried by angle iron frame 20 upon which sits box 8. The

forward vendtof box8 hasla leg 22 neareach. corner thereof, and this leg carrie'sfla specially formed element 24 that; analogous in nature to movable element 26-mounted at the rear end of box 18 forwardtend is raised from the supporting surface can :a'sumcient distance to render legs 22 and elements 24 uneffective as supporting parts. When this truck 28 is in the operative position so that legs 22 are raised fromsupporting surface 30, wheels l4 combine with the wheels of truck 28 to permit movement of the box as desired. When the box is located within a freight car and blocking to prevent movement is performed, element 24 is secured to supporting surface}!!! by a block 32, oneend of which is extended over slotted floor 34 of element 24. Slot 36 formed through floor 34 permits the passage of a large spike or analogous fastening means 38,Ha similar one of which may likewise be driven into supporting surface 30 exteriorly ofelement 24.

sidewalls 40 of elements 24 will bear against opposite sides of block 32 to prevent sidewise movement of box 8 and elements 22 and 24 respectively, will be held down against surface 30, to effectively and further preclude longitudinal or transverse displacement of box 8.

Element 24 is secured directly to leg 22 so that it becomes an integral part thereof and in the PATENT, omce face 30.

Reference to Figs. 4 and 5 will teach that ele-;

ments 26 are likewise provided with a cavity which is formed between backwall 44, side walls 46, and bottom wall 48 Wall 48 has a slot 50 formed therethrough for the reception of a. spike or analogous means, 52-, which is passed through block 54 when box 8 is anchored against-movement. Backwall 44 has a slot 56 formed therethrough that is of a special nature in that the end portions thereof are squared as at 58 while the central portion 66 thereof is enlarged topermit the entire element 26 to be rotatedabout vbolt 62 when the latter is in axial alignment with portion 66 of slot 56, This'bolt 62 has a squared length 64 provided thereon and the shouldered nature of bolt 62 precludes its being drawn against element 26 during assembly-thus element 26 is free to reciprocate a distance approximately equal to the length of slot 56 and to rotate about the center of bolt 62 when this bolt is passing through portion 60. v

The squared end portions 58 of slot 56 are of a width substantially the same as the width of square length 64 of bolt 62 and therefore when the boltis in squared end of slot 56, element 26 cannot turn.v Such a relation of parts as just aforementioned, allows the movement of element 26 from the position against supporting surface (shown in full lines ofFigs. 4 and 5) to an inoperative or raised position, shown in dotted lines of Figs. 4 and 5. When box 8 isbeing moved 'from place to place, elementsi26 must be rendered inoperative and manipulated so that: they will not interfere withthe movement of the box when truck 28'is brought into play.

The relation of blocks 54 to these rear elements 26 is the same as the relation of block 32 to forward elements 24 in that movement in any direction is precluded when the blockis secured in place as illustrated in Fig. 5.

' Elements 26 are secured directly to frame 20 of the box through the medium of bolts 62 and the entire assembly should be constructed of strong material such as steel, so that severe stresses and strains are definitely overcome.

Obviously the greater the weight of the box and material therein, the greater will be the fric- 5 tion between forward legs and elements 24 and supporting surface 30, and the proximity of elements 26 to wheels M will always insure that these wheels are rendered, inoperative when blocks 54 are in place. i l t It is conceivable that anchoring structure for portable ice boxes may be made to present different physical characteristics than those illustrated and described, and it is desired to be limited only by the scope of the appended claim. 15

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

In a portable ice box having wheels on the bottom thereof for moving the same along a supporting surface, anchoring structure for securing the ice box in place, comprising an element consistingof a slotted backwall disposed in a vertical plane against one side of the ice box, a slotted bottom wall disposed in a horizontal plane against the supporting surface when the-element is in the operative positiomand side walls cooperating with said backwall 'and the bottom wall to form a block-receiving cavity; and a bolt having a head and a squared shank thereon carried by the ice box and extending through the slot in said backwall, said slot having a central enlarged portion intermediate its ends to permit turning said element about the axis of said bolt when the latter is extended through the enlarged portion, the slot on each side of the enlarged portion being narrower than the enlarged portion and substantially the same Width as the squared shank of the bolt to hold the element against accidental rotary movement when the squared shank is in the slot on either side of the enlarged portion, the location of said slot and the bolt being such as to allow the bottom wall of the element to rest upon the supporting surface when I the wheels of the ice box are restingon the sur- "1'5 face and with the bolt against the end of the slot above and at one side of the enlarged portion thereof or to permit the element to be rotated 180 and slide over the bolt until the squared shank is positioned adjacent the end of the slot on the other side of said opening.

WILLIAM F. KIRK. 

